Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8541948 | Operating device and method for operating at least one Hg low pressure discharge lamp | Armin Konrad, Martin Zachau, Ralph HOECK | 2013-09-24 |
| 8137586 | Phosphor blend for a compact fluorescent lamp and lamp containing same | Albert M. Cavallaro, Robert E. Levin, Chung-Nin Chau | 2012-03-20 |
| 7641517 | Keyed socket and lamp base | Karl-Wilhelm Vogt, Tobias Brown, Markus Pieper, Albert M. Cavallaro, Dennis S. Holt | 2010-01-05 |
| 7402955 | Lamp with multi-layer phosphor coating | Chung-Nin Chau, Paul Salvi | 2008-07-22 |
| 6137217 | Fluorescent lamp with improved phosphor blend | Romano G. Pappalardo | 2000-10-24 |
| 6007741 | Method of making luminescent metaborates | Michael Krebs | 1999-12-28 |
| 5714836 | Fluorescent lamp with improved phosphor blend | Lawrence L. Hope, William J. Roche | 1998-02-03 |
| 5039449 | Method for improving a manganese activated zinc silicate phosphor | Thomas E. Peters, A. Gary Sigai | 1991-08-13 |
| 4979893 | Method of coating yttrium vanadate phosphors with Al.sub.2 O.sub.3 | Romano G. Pappalardo, Thomas E. Peters | 1990-12-25 |
| 4956202 | Firing and milling method for producing a manganese activated zinc silicate phosphor | Anthony F. Kasenga, A. Gary Sigai, Thomas E. Peters | 1990-09-11 |
| 4952422 | A method of coating a layer of an yttrium vanadate phosphor contained in a fluorescent lamp with Y.sub.2 O.sub.3 or Al.sub.2 O.sub.3 and lamps made therefrom | Romano G. Pappalardo, Thomas E. Peters | 1990-08-28 |
| 4950948 | Manganese activated zinc silicate phosphor | Thomas E. Peters, A. Gary Sigai | 1990-08-21 |
| 4925703 | Firing and milling method for producing a manganese activated zinc silicate phosphor | Anthony F. Kasenga, A. Gary Sigai, Thomas E. Peters | 1990-05-15 |
| 4806389 | Method of treating a coated phosphor | Thomas E. Peters | 1989-02-21 |
| 4803400 | Pre-water-based suspension phosphor treatment process | Thomas E. Peters | 1989-02-07 |